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A014929
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a(1)=1, a(n) = n*14^(n-1) + a(n-1).
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2
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1, 29, 617, 11593, 203673, 3430617, 56137369, 899445401, 14181546905, 220792014745, 3402593219481, 51997375255449, 789018236134297, 11901025061692313, 178581127445062553, 2667670656370058137, 39692877399129367449, 588537118527090893721, 8699235348529189004185
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OFFSET
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1,2
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LINKS
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FORMULA
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a(n) = (1+(13n-1)*14^n)/169. O.g.f.: x/((14*x-1)^2*(1-x)). - R. J. Mathar, Mar 05 2008
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MAPLE
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MATHEMATICA
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PROG
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(PARI) a(n) = (1+(13*n-1)*14^n)/169; \\ Jinyuan Wang, Mar 11 2020
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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